To verify the purity of paneer at home, you can perform seven simple tests. The Water Test involves dropping a piece of paneer into water; pure paneer remains intact, while adulterated paneer may dissolve or cloud the water. The Heat Test requires heating paneer without oil; pure paneer softens slightly, while fake paneer may release oil or become rubbery. The Texture Test entails pressing the paneer; fresh, pure paneer feels soft and crumbly. The Smell Test checks for a mild milky aroma, as sour or chemical smells indicate spoilage. The Iodine Test detects starch; if the paneer turns blue or black, it is adulterated. The Boiling Test assesses whether paneer retains its shape; pure paneer stays intact, while adulterated may break apart. Lastly, the Lemon Test checks for reactions; pure paneer shows no significant change. If your paneer passes most of these tests, it is likely safe. For the best quality, always purchase from trusted sources.